| 摘要 |
<p>PURPOSE:To provide a mouse position controlling system which detects the absolute position of a mouse on an optical sheet and is convenient to use. CONSTITUTION:A reflecting surface group RFG having the reflecting surfaces of different angles is formed on the optical sheet P1, and the mouse is provided with optical sensors LR1, LR2 to detect the reflecting surfaces in the different angles, and the absolute position of the mouse M2 on the optical sheet P1 is detected by detecting the reflecting surface group RFG on the optical sheet P1.</p> |
